RecipesCauldron

package com.techmage.magetech.crafting;

import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import java.util.*;

public class RecipesCauldron
{

    private static final RecipesCauldron cauldronBase = new RecipesCauldron();
    public static RecipesCauldron crafting() { return cauldronBase; }
    private RecipesCauldron() { }

    private Map recipes = new HashMap<ItemStack, ArrayList<Item>>();

    public void addRecipe(ItemStack output, Item ... inputs)
    {
        ArrayList<Item> inputList = new ArrayList<Item>();

        for (Item input : inputs)
            inputList.add(input);

        recipes.put(output, inputList);
    }

    public boolean hasCraftingResult(Item ... inputs)
    {
        ArrayList<Item> inputList = new ArrayList<Item>();
        Iterator<Map.Entry<ItemStack, ArrayList<Item>>> iterator = recipes.entrySet().iterator();

        for (Item input : inputs)
            inputList.add(input);

        while (iterator.hasNext())
        {
            Map.Entry<ItemStack, ArrayList<Item>> entry = iterator.next();

            if (entry.getValue().containsAll(inputList) && entry.getValue().size() == inputList.size())
                return true;
        }

        return false;
    }

    public ItemStack getCraftingResult(Item ... inputs)
    {
        ArrayList<Item> inputList = new ArrayList<Item>();
        Iterator<Map.Entry<ItemStack, ArrayList<Item>>> iterator = recipes.entrySet().iterator();

        for (Item input : inputs)
            inputList.add(input);

        while (iterator.hasNext())
        {
            Map.Entry<ItemStack, ArrayList<Item>> entry = iterator.next();

            if (entry.getValue().containsAll(inputList) && entry.getValue().size() == inputList.size())
                return entry.getKey();
        }

        return null;
    }

    public ArrayList<Item> getCraftingIngredients(ItemStack output)
    {
        Iterator<Map.Entry<ItemStack, ArrayList<Item>>> iterator = recipes.entrySet().iterator();

        while (iterator.hasNext())
        {
            Map.Entry<ItemStack, ArrayList<Item>> entry = iterator.next();

            if (entry.getKey().getItem() == output.getItem() && entry.getKey().stackSize == output.stackSize && entry.getKey().getItemDamage() == output.getItemDamage())
                return entry.getValue();
        }

        return null;
    }

}